“This activity originated in Israel and focused on Nigeria, Senegal, Togo, Angola, Niger and Tunisia along with some activity in Latin America and Southeast Asia.

“The people behind this network used fake accounts to run pages, disseminate their content and artificially increase engagement. They also represented themselves as locals, including local news organizations, and published allegedly leaked information about politicians. The Page administrators and account owners frequently posted about political news, including topics like elections in various countries, candidate views and criticism of political opponents.

“Although the individuals behind this network attempted to conceal their identities, our investigation found that some of this activity was linked to an Israeli commercial entity, Archimedes Group. It has repeatedly violated our misrepresentation and other policies, including by engaging in coordinated inauthentic behavior. This organization and all its subsidiaries are now banned from Facebook, and it has been issued a cease and desist letter.”

Facebook said it is constantly working to detect and stop this type of activity because it does not want its services to be used to manipulate people.

Assuring its users of its commitment to continually improving to stay ahead, the social media giant said it is investing heavily in building better technology, hiring more people and working more closely with law enforcement, security experts and other companies.

In February, Facebook had partnered with Dubawa, a fact-checking website in Nigeria, to help assess the accuracy of news and reduce the spread of misinformation.